11601011005 has 16 divisors (see below), whose sum is σ = 14021429760. Its totient is φ = 9214232832.

The previous prime is 11601010999. The next prime is 11601011017. The reversal of 11601011005 is 50011010611.

It is a cyclic number.

It is not a de Polignac number, because 11601011005 - 2⁵ = 11601010973 is a prime.

It is a super-2 number, since 2×11601011005² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11601011005.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 388312 + ... + 417118.

It is an arithmetic number, because the mean of its divisors is an integer number (876339360).

Almost surely, 2^11601011005 is an apocalyptic number.

It is an amenable number.

11601011005 is a deficient number, since it is larger than the sum of its proper divisors (2420418755).

11601011005 is a wasteful number, since it uses less digits than its factorization.

11601011005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29388.

The product of its (nonzero) digits is 30, while the sum is 16.

Adding to 11601011005 its reverse (50011010611), we get a palindrome (61612021616).

The spelling of 11601011005 in words is "eleven billion, six hundred one million, eleven thousand, five".